Credit

Caption

Tumour. Coloured scanning electron micrograph (SEM) of a sarcoma cancer cell. Sarcomas (green and yellow) are malignant (cancerous) tumours in the body's connective tissues (brown). Connective tissues include muscles, blood vessels, nerves and fat. Sarcomas are a rare type of cancer that is often hard to detect. Treatment is generally with surgery to remove the tumour, although radiotherapy or chemotherapy may be used first to shrink the tumour.